- Companies
- Builders
- Kingston upon Thames
- Diadem Homes Limited
Diadem Homes Limited
- Company number
- 04587784
- Incorporated
- 12 Nov 200223 years trading
- Registered office
- Como House Warwick Road, Hampton Wick, Kingston upon Thames, Surrey, KT1 4DW
- Nature of business
- Construction of domestic buildings
Diadem Homes Limited is a 23-year-old private limited company registered in Kingston upon Thames, company number 04587784, one of 90 building contractors in Kingston upon Thames. Its next accounts are due at Companies House on 28 November 2026, and its first CT600 is due at HMRC on 28 November 2026.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets up £73K (+16.1%) on the year before, to £523K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £9.4M against £9M owed within a year: 1.1 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 10 years, 2015 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 28 Nov 2024 | £523K | £2,024 | £9.4M | £9M | 0 |
| 28 Nov 2023 | £451K | £20K | £4.7M | £4.3M | 5 |
| 28 Nov 2022 | £381K | £2,139 | £1.4M | £1.1M | 5 |
| 28 Nov 2021 | £379K | £34K | £1.6M | £1.2M | 5 |
| 28 Nov 2020 | £338K | £56K | £2.9M | £2.6M | 5 |
| 29 Nov 2019 | £348K | £8,818 | £3.4M | £3.1M | 5 |
| 29 Nov 2018 | £354K | £8,921 | £1.9M | £1.5M | 5 |
| 30 Nov 2017 | £607K | £280K | £3.3M | £2.2M | 5 |
| 30 Nov 2016 | £306K | £29K | £1.9M | £1M | |
| 30 Nov 2015 | £561K | £53K | £1.4M | £342K |
Where Diadem Homes Limited is registered
The registered office is in Kingston upon Thames (KT1), in the Richmond upon Thames local authority area, London. Show KT1 4DW on a map.
Other trade companies in KT1
- Bespoke Garden Homes LimitedBuilders
- Kingston Roofing and Restoration LtdBuilders
- Apline UK LtdMotor traders
- Grip KTS LtdMechanics and garages
- Alvo Construction LtdBuilders
- Baw Auto UK LimitedMotor traders
- Black Dog RPM LimitedCleaning companies
- Idecor8 Group LtdBuilders
Also registered at this address
1 other company uses the same registered office as Diadem Homes Limited.
- Glenwood Homes LimitedBuilders
What happens if Diadem Homes Limited files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 28 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 29 Nov 2026 to 28 Dec 2026 | £150 |
| 1 to 3 months late | 29 Dec 2026 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 28 May 2027 | £750 |
| More than 6 months late | From 29 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 2028 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- 04587784
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 November 2002 (23 years ago)
- Registered office
- Como House Warwick Road, Hampton Wick, Kingston upon Thames, Surrey, KT1 4DW
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 28 November (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 28 November 2024
- Last confirmation statement
- 12 November 2025
- Charges (mortgages)
- 14 outstanding of 15 registered
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Kingston upon Thames
Other active building contractors registered in Kingston upon Thames.
- Dwell Rich Ltd2020
- East Kingston Potato Barn Limited2025
- Elec Heat Limited2016
- G7 Construction Company Ltd2022
- Garage Conversion Ideas Ltd2022
- GD Brickworkspecialist Ltd2026
- Geobuild Services Ltd2026
- Glass on Time Limited2020
All building contractors in Kingston upon Thames · All trades in Kingston upon Thames · Builders across the UK
Frequently asked questions
When are Diadem Homes Limited's accounts due?
Diadem Homes Limited's next accounts are due at Companies House by 28 November 2026 (in 46 days), covering the period to 28 February 2026.
When is Diadem Homes Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 28 November 2025, due by 28 November 2026, and one for the period to 28 February 2026, due by 28 February 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Diadem Homes Limited still trading?
Diadem Homes Limited is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does Diadem Homes Limited do?
Diadem Homes Limited is registered under Construction of domestic buildings (SIC 41202).
How old is Diadem Homes Limited?
Diadem Homes Limited was incorporated on 12 November 2002, 23 years ago.
What is the penalty if Diadem Homes Limited files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View Diadem Homes Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.